div{
    display: block;
    font-family: 楷体;
    font-weight: 600;
}
ul{
    list-style: none;
}
a{
    text-decoration: none;
}
.fr{
    float: right;
}
.fl{
    float: left;
}
.pr{
    position: relative;
}
.pa{
    position: absolute;
}
input{
    display: block;
    width: 300px;
    height: 30px;
    outline: none;
}
input[type="text"],input[type="password"]{
    border-radius: 5px;
}
input[type="button"]{
    border-radius: 10px;
    outline: none;
}